The bizarre flashing lights on a smartwatch

2022-12-09

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Smart watches use a flashing green light to measure your heart rate and a red and infarred light to measure your oxygen saturation. The way it works is really clever.

Check out Andrew Steele's video here: https://www.youtube.com/watch?v=fDj2kYIF-sE

Check out the python code he used to analyse my face: https://github.com/ajsteele/faceHR

Check out my Motion Amplification video here: /youtube/video/rEoc0YoALt0

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